Balance valve



Oct. 8, 1929. n P. COLLINS ET Ax. 1,730,408

BALANCE VALVE Filed April 4, @928 Patented oa. a, 192e PALMER COLLINS, GF CEDAR GROVE, NEW JERSEY, AND ABBOT A. LANE, OF NEW ROCHELLE, NEW YORK BALANCE VALVE Application filed April 4,

operating through a liquid in a U-shaped tube with open ends; to adapt the tube for connection to a region of gas pressure so that when the pressure is excessive, the gas will escape through the tube, displacing and ej ecting the liquid therein; to provide means for collecting the ejected liquid and mea-ns for restoring and conveying it back again to the tube when the gas pressure has returned to normal; to provide a valve functioning to relieve against excessive pressure, and also to compensate for decreases in pressure of the gas; and to imrove and simplify the construction.

Other objects, advantages, and desirable Y features of the invention will appear as the description proceeds.

The drawing illustrates by a cross-sectional, elevational view, a valve constructed in accordance with the present invention.

In detail, the invention is embodied in a valve construction which comprises a pipe 10 which is adapted to be connected to the region of gas pressure under control. The pipe 10 connects through a bushing 11 with a boxv 12 having a plug 13 in its wall which may be G taken out to permit access to the interior of the box for purposes of cleaning, inspection, or repair. On the other end of the box opposite the pipe 10 is positioned another bushing 14 into which extends a nipple 15, the nipple projecting into a container 16 which is hollow and forms a chamber 17. The chamber communicates with the interior of the box 12 through the nipple 15. i

lVithin the chamber of the container 16, there is positioned a baffle 18 which is secured to the interior of the container in any suitable or convenient manner and extends above the top or open end of a U-shaped tube 19. The end of the tube projects into the chamber 17 to an appreciable amount, as sho-wn in the drawings, and as above stated, has an open end positioned just beneath the baffle 18. I. The end of the tube projecting within the container forms with the interior of the container 192B. Serial N0. 267,214.

a well,as will appear more fully hereinafter; and the bottom of this well has an opening 20 establishing communication between the well and the interior of the tube, ythe opening extending through the wall of the tube. Within the tube, a body of liquid 21 such as mercury, or other liquid of high' specific gravity is placed'and normally this liquid oc` cupies the position shown in the drawings.

The other end of the tube is also openand communicates with the interior of a container 16a, which is also hollow to form a chamber 17at within which is positioned abaiiie 18a above the open end of the tube. The end of 1 the tube projects into the container to` an appreciable Vamount and forms with the in` Y terior of the Vcontainer a well, the wall of the tube having an opening 2Oa at the bottom of said well establishing communication between the interior of the tube and the well. The top of the container has a nipple 15a extending into a bushing 14a in a box 12a and serving to connect the interiors of the container and the box. The box 12EL also has a plug 13a for permitting access to its interior, andthe upper part of the box a bushing 11a into which is threaded a pipe 10a. {This latter pipe is open-to the atmosphere.

Within the interior of the box 12a, there is preferablyplaced a mass of collecting material 22 such as glass wool.

In operation, when the pressure through Y the pipe 10 becomes great enough to force the liquid or mercury column through the right hand arm of the tube 19 as seen in the drawings,'the liquid is delivered into the chamber 17a and collec-ts in the well formed between the end of the tube' and the interior of the container 16a. rIhe gas is thus free to pass thro-ugh the chamber 17a, nipple 15EL and through the collecting material 22 to the pipe 10,a into the atmosphere. The baiiie 18EL deflectsV the liquid ejected into the well. If any of the r liquid is carried over by the force of the expanding gas, it is caught by the collecting material 22 and whenthe pressure and flow 4 of gas diminish, the liquid drips back into the i ing 2Oa back into the tube 19, and the initial condition is re-established.

Should the pressurerthrough the pipe l0 expand slightly or gradually, the liquid in the tube 19 is forced gradually out of left hand arm into the right hand arm and when the pressure declines the liquidL returnsto its.

normal position. Should a decrease in pressure through the tube l0 exist, the'liqid is' lifted in the' left hand arm of the'tube v19 un- 5. A valve according to claim 4, With boxes.

above the containers and communicating With .the interiors of the containers through the Wall openings thereof; pipes leading from the interiors of the boxes; and collecting material in at least one of said boxes,

PALMER S. ABBO'I` A. LANE.

til the pressure readjusts itself, vvh'eii -the-- `liquid again assumes its normal position,

Thus, the liquid in the tube and the valveof the invention serves to compensatefor small irregularities of ressure in the" ipe '10 y 7 l. yA valveas characterized.comprising a, plurality vof vertically disposed bottom conek nectedl passages, the upper ends vwhereof are` open; abody iof liquid in said passagesfor normally closing the `same; chambers enveloping theiopen ends of said passages from a point belovv the'extremity of said passages;

and rmeans establishing `cormnunication between said chambers and said passages adJ-acent the bottom of said chambers;

i V2. A valve comprising al Usshaped tube having open ends; a liquid in ,said tube; containers forming` chambers abovej the Vopen ends of said tube, the ends of the tube projects* ing into said chambers and vforming Wells with the interiors ofthe containers,said tubes having openings at the bottoms of said 'Wells Within' the containers and means establishing communication with said chambers; f-

3. A valve' comprising la'lJ-sha-ped'-"tubr i havingopen' ends 'a liquid invsaidft-ube; meansv forming 'chambers aboveftlie lopen `ends 'of said tube; b'ales fwithin said -chambersabovev they open ends of the tube; and' means-establl-r lishinlgcommunication Witlrsaid chambers.'

4. A valve comprisingya U-shaped tube having open ends; a liquid in said-tube; con-'- tainers forming chambers above theV open endsof said tube the ends of the tubefprojecting into'saidl ehambers'and forming Wells" Withlthe Interiors of the cont'ainersgfsaid tubes y havingopeninigs lat tliebottom of saidfivells Within the containersgbafes Within" the' tainers Vabove thefopen endsI of theE tubes for' deiectng` the liquid emitted )from` the". open ends int-o the Wells, saidl containers having 'Wall openings 4,above thee batlesz 

